Typewriting machine



July 13 1926. v

w. F. HELMOND TYPEWRITING MACHINE File i July 25. 1924 2 Shasta-Shed. 1

July 13 1926. v w. F. HELMOND TYPEWRITING MACHINE Filed July 25, 1924 Patented July l3, i 26.

.HARTEQED, GGNNEGTICUEE, ASSIGNQR TO UNDER-WOOD WILLIAM HELMOND, -013 resales its.

TYEEWRITER COMPANY,-\OF NEVI N. S.., A COB-BORA'IIONOF DELA- HARE.

.rrrnwnrrrne MACHINE.

Apphcation filed July 25, 1924. Serial No. 728,068.

This invention relates to typewriting machines and more particularly to along carriage combined typewriting and computing machine equipped "for continuous. .loilling. The improvements are not necessarily limited to -a machine of this particular type, however, but may be useful in other relationsas well.

In the present machine, which is generally of the same type as the machine disclosed "in my pending application Serial No. 609,560, filed December 29, 1922, a. wide multiple-ply continuous wor'lcwe'b, having a succession of work-forms or sections thereon, is led forward from the rear of the machine through a carbon-carrier reciprocable, upon an'eX- tension of the carriage, toward and from the platen, and thence, with the interleaved carbons, around the platen for typing. As the typing proceeds computations are eifected by the computing mechanism with reference to the entries typed. At the conclusion of writing a form, "the. platen is displaced, to permit the worlcweb and carbons to be straightened beneathv it. The work-web is drawn forward to a gage carried by the platen-frame and the carbon-carrier is thrust to the rearlto strip'the carbons from the typed form section and to interleave them with the next succeeding fform section. The platen is then lowered and the typed section is torn oil by means of a knife at the delivery side er the platen.

The multiple ply continuous due to its inertia, is apt to slip at the/line- ,spacing of the platen instead of being fed evenly thereby. 'To overcome this, it has.

been customary, even with the work-webs of ordinary width heretoforeused, for the typist .to draw .the carbon-carrier forward preparatory to the writing of a form, to create a slack in the web which may be drawn upon by the platen :as the typing .proceeds. Because of its great width, the web used the present machine is much heavier than webs heretofore employed, .and tends to draw the carbon-carrier to the rear when the latter is released by the opei'atoi',-and.so to take out the slack that has been created.

One feature of the invention relates to the provision of means .to revent the work- Web from drawing thecarbon-carrier .tothe rear. To this end, side guides for the work web at the rear of the machine .aremounted for rotation in unison hetwemran upright work-web,

work-receiving position and a horizontal web-crimping position. In the latter posi tion inwardly-extending arms on the webguides bear frictionally against the web and also bend it down sharply enough around arod at the rear end of the carriage extension to counteract the tendency of the vertical stretch of web "behind the machine to drag the carbon-carrier to the rear. Provision is also made of means to yieldingly detain the guides in either work-receiving or web-crimping position.

Another feature of the invention relates to side guides for the work-web provided on the platen-frame at the delivery side of the platen. Each of these guides consists of an upstanding side. gage having a floor portion, the latter resting upon a' front paper-table and being extended to the rear thereof and provided with cars to embrace a fiat-sided rodextending longitudinally of the platen and with a spring tongue to bear against theflat side of therod. vEach tongue engages the flat side of the rod under a slight stress and tends to press the floor portion of theside guide against the front' paper-table to form a tight joint therewith to prevent accidental passage of the paper beneath said 'fioor portion. Theside'guides are slidable along the rod for individual adjustment to the width of the work and. are frictional'ly held in adjusted positions *by pressure of the tongues against the rod.

Another feature of the invention relates to the .constructionof the carbon-carrier and the frameon which it travels, whereby .undue lengthening of the rear supporting rail of the carriage extension is avoided and the weight of the carriage extension is :kept down. lVith this end in view, the supporting frame of -the carbon-carrier is made of the usual width so that its bearings on the rear supporting rail are no farther apart than usual, but the carbon-carrier itself is made wide enough .to accommodate a wide work-web and is caused to project equally beyond said support for a substantial dis tance at opposite sides thereof.

Another feature of the invention relates to the provision .of. means to prevent improper .engagementof the selec'tordogs and the denomination jacks. This guide rail is so long that all has been found to be apt to bend considerably under stress, fulcri ng about atssuppor'ts This peruuts side stay of the carriage under the twisting impulse of the long carriage extension at tabulating, and thus permits the selector to engage the wrong denominational jack and so to cause erroneous computation. In accordance with the present invention this difficulty is avoided by the provision of a stiffening and reinforcing bar connected rigidly to said rail between its supports. The reinforcing bar is made quite flat so that it can fit in below the traveling parts of the carriage and above the carriage-returning rack, but is broad from front to rear and so braces the guide rail very effectively against horizontal bending.

The rear supporting rail of the carriage extension is of such great length. due to the long travel of the carriage, that there would be a decided tendency for it to bend, if nnsupported, and to permit the carriage er;- tension to sway sidewise at tabulating and to vibrate at letter-spacing. Such vibration would be objectionable because it would materially slow up the feeding of the carriage. In accordance with one feature of the invention, provision is made of supporting and bracing means on the usual rail-supporting brackets to brace the guide rail near its ends beyond the supporting brackets. and also between its ends. Such bracing means may advantageously be in the form of an L-shaped bar, having tongues, connected with the guide rail at several points.

It is sometimes desired to change the web in use, or to remove the web and carboncarrier from the machine when the machine is to be used for other purposes. In such a case it is desirable to lift the carbon-carrier by seizing the carrier handle near the forward end thereof. The carrier is so long and heavy, however, that it tends to twist out of the hand if lifted in this manner. For the purpose of facilitating the removal of the carbon-carrier from the machine, provision is made of a broad handheld or grip on the carbon-carrier handle, whereby it can be lifted without liability of twisting in the operators grasp.

Other features and advantages will hereinafter appear.

In the accompanying drawings,

Figure 1 is a sectional side elevation of a part of a machine having the present improvements embodied therein.

Figure 2 is an exploded detail view. showing the parts of the rear web-guide assembly for preventing the dragging backward of the carbon-carrier by the work-web.

Figure 3 is a transverse vertical section of portion of the machine.

Figure 4 is a plan view of a part of the machine having an intermediate portion omitted for compactness of illustration.

Figure 5 is a sectional de ail. view, showing the construction and mounting of one of the side guides for the work-web at the delivery side of the platen.

Figure 6 is a fragmentary front view, partly broken away, showing the parts illustrated in Figure 5.

Figure 7 is a transverse vertical section through the carriage extension. showing particularly the mounting of the carboncarrier.

The machine, which is of the Uildtlnood- Hanson type, comprises a typewriter ll having a frame 12 which rests on a casing of a computer (not shown). The computer is controlled by the numeral keys of the typo writer and is housed in the computer cas ing which rests on a stand (not slmwn).

The typewriter 11 comprises a long platen 16 mounted on a plateiraxle 17, which is rotatably supported in a long traveling carriage 18. The carriage 18 is supported at its rear on a long rail 19 fixed on the typewriter frame 12 and projectin' far beyond the sides of said frame. Prov. ion is made of brackets 20 attached to the rear of the typewriter frame 1 at each side thereof.

and carrying at their upper ends a bar 21 on which may be supported one or more sets of denominational jacks 22 and a housing 23 for each set of such jacks. it the rear of each housing 23 a casing 24 for the usual thrust rods (not shown) extends downwardly to the rear of the connnutcr casing and is attached thereto.

The carriage 18 is provided at its rear with brackets 25 extending rearwardly and upwardly and having upwardly-extending ends in which are mounted a rod 2; along which a denomination-selector 2? may be moved and a notched rod 99 having its notches at letter-space distances. the denomination-selector being held in adjusted positions by engagement of a tooth i.) thereon in he notches of the rod l'fhcn the carriage 18 is traveling through a coni uitin zone, a tappet 30 carrier by the denomination selector 27 engages successively the forward ends of the denominational jacks T. and selects the denominations in which dim its are to be indexed. The computing mac 2 nism and the denominat-ionselecting m or: nism forming part thereof may he: in gcnera]. similar to that disclosed in the patent to Richard M. Becker. No. lQSGIlJ-i. gran ed March a. 1919. I i i The present machine also includes the features of a continuous billing nmchinc. The axle 17 of the platen 16 is jourualcd in llw ends 3-1 of a platen-displacing frame 3;. said ends being extended forwardly and upwardly, and being pivoted by such extended portions upon stub shafts 33 n'zountcd ondhc shiftable platen-frame at the front of and considerably above the normal position of the platen-axle 17. The platen-axle IT is provided at its ends with gears, Ill. which 1' iii ill) if t) rar' id.)

mesh with broad pinions pivoted on short shafts 36 on the shiftable platen-frame. The broad pinions 35 also mesh with gears 37 similar to the gears 3st and fixed on the inner ends of the stub shafts 3S journaled in the frame of the carriage 18. The platen 16 may be rotated by means of either of the finger-wheels 39 or by the usual line-spacing mechanism. \Vhen the web, indicated in general by 40, is to be straightened under the platen 16 to permitthe withdrawal of the interleaved carbon-sheets in the usual manner, the platen is swung upwardly about the shafts 33, the webs then being drawn forward and ga'ged by means of the usual gage a1 adjustable on the gage bar 42 mounted on a front paper-table 43 which forms part of the platen-displacing frame 32.

At the rear of the machine provision is made of a carbon-carrier 45 mounted for movement toward and from the platen upon a rear carriage extension or table 46 comprising a front member 47 secured to brackets 49 extending rearwardly from the carriage 18, a rear member 50 and a plurality of connecting members 51 having on the upper sides thereof rails 52. Grooved rolls 53 on the base-plate 54; of the carbon-carrier 45 travel along these rails 52 in the movements of the carbon-carrier toward and from the platen 16. The carbon-carrier 45 may be moved to the front or rear by a handle 55 in the usual manner.

Tosupport and guide the rear carriage extension 46 atits rear end, provision is made of a guide rail 56 mounted on rear brackets 57 to extend parallel to the guide rail 19. Each of the members 51 has an angle plate 58 attached to it having a downwardly-extending portion, and each plate carries a roller 59 which rides upon the rail 56 and a guide (not shown), which partially embraces the rail 56. F or the purpose of preventing excessive swinging movement of the carriage and carriage extension at the conclusion of a tabulating operation, which would interfere with the proper engagement of the denomination-selector tappet f 30 with the jacks 22, the plates 58 are provided with' lateral extensions (not shown) to lie closely adjacent the rail 56 and to the rear thereof.

In accordance with the present invention provision is made of means for further guarding against side sway of the carriage and carriage extension at tabulating and of preventing vibration of the carriage extension at letterspacing. This means may consist of an L-shaped bracing and supporting bar 60, which comprises a vertical web 61 and a horizontal web 62 and is secured by screws 63 upon rear supporting brackets 57 and projects for a substantial distance outwar beyond said brackets. The L-shaped bar 'has tongues 6 f which project rear wardly into the guide rail 56 at the ends thereof and at one or more intermediate points, and which are rigidly secured thereto. This supporting bar 60 acts as a brace to secure the rail 56 firmly against bending in a horizontal plane, this being particulariy de sirable in the present machine because of the great length of the rail necessitated by the long carriage and the long range of movement thereof.

For the purpose of further guarding against side sway and vibration of the carriage and the carriage-extension, provision is made of means for reinforcing the long carriageeupporting rail 19 to prevent horizontal bending thereof. There is a decided tendency of this rail to bend, due to its great length, to the great weight of the long carriage, and to the strong twist which the carriage extension tends to exert. Such bending tends to bow the rail between its supports 65. To make the rail rigid, provision is made of a broad flat reinforcing bar 66 to the rear of the rail 19, which bar has a series of tongues 67, inserted in the rail and rigidly connected thereto at several points be tween the rail supports. The space available for this reinforcing bar is quite restricted, due to the traveling carriage parts above and a rack (not shown) below, which forms part of automatic carriage-return mechanism. The bar 66, however, may be quite broad in a horizontal direction, and as this is the direction in which it is desired to avoid bending of the rail, the bar is effective. to make the rail substantially rigid for all practical purposes.

Since it is desired to use the machine with a very wide workweb, the carbon-carrier l5 is made of extraordinary width. It is not desired, however, to widen the carriage-e2;- tension 46 and so increase its weight, nor to extend the rail 56 as far as would be necessary if the carriage extension were widened, since this would increase the flexibility of the rail 56. The carriage extension 46 and the. ca1.'boncarrier base 54 are therefore made of the usual width, but the detachable carbon-holder 68 is made much longer than the base 5 l-, and dowel pins 69 on the holder are located to cause the holder to overhang the base equally at opposite sides when placed on the base. Vertical flanges 70 are provided at the front and rear of a holder bottom plate 71 to render said bottom plate rigid, for the purpose of strengthening the overhanging parts of the holder.

The handle 55 is connected to the bottom plate 71 at one end thereof and extends forward to within easy reach of the operator. It is desired to use this handle not only for moving the carbon-carrier along the rails but for lifting the carbon-carrier out of the machine as well. It will be appreciated, however, that since the carbon-holder 68 projects entirely at one side of the handle 55,

all

it will be unbalanced and hence will tend to twist in the operator's grasp. lVith the usual type of carbon-carrier handle upon a long carbon-holder like the present one, this twisting force would be irresistible. The carbon-carrier handle however, is provided with a broad hand-hold 72 near its forward end to guard against such twisting. The operator can lift the carbon-holder 68 by this hand-hold '72. without. allowing it to twist, and so can remove it from the ma chine without going around to the back end thereof.

The wtn' i-web t o broad in the present machine that it is unusually heavy. it is more t..an ordinari y desira 'ilc there'l'ore that a slack he created in the web to be drawn upon by the platen at liue-spacini' since the inertia ot the heavy web would le very likely to came the web to slip beneath the platen. Such a .tlacl; may be produced by drawing the carbon-carrier l to its forward position. The web is so very heavy. however, that it tends to pull the carboncarrier again to the rear unless provision made to prevent this.

lin leature ot the in vention relates to the provision or means for this purpose. it the rear end of the carriage extension i l. where the web to is first led into the machine. a rod 73 is mounted in slots T l formed i brackets 75 on the carriage evtension wit 1 provision for vertical shitting. A coil sprite; 76. secured to the end of the rod 7 and to a projection 7. on one oi. the brackets 75, draws the rod 73 toward the bottoms of the slots T l. The l'flf. T3 comprises a. hollow ortion 7?) evtendine; between the bractscts i5 and having a lJlLdtllt'llllill groove 7! in its outer face. z t pair o1" combined webguide and detent members 90 is mounted upon the rod. Each ol" these members coup prif s an upright web-guiding linger St and a horiZontally-extending web-detent linger S2 at the outer end thereof. he webuid ing; finger St has a rod-receiving opening 8 3 at its lower end with a projection $-l therein to tit in the. groove 75) ot the rod. and is bent in U form to provide a connecting web 85 and a bearing web 86 having a rod-embracing o ienine ST therein. The bearing web has an integral spring finger S8 to bear frictionally upon the hollow portion oi" the rod to yieldingh: detain the member in any adjusted position along the rod. The rod 7 has 'l'ast upon it a detent cam Ell) having' a notch 90 for engaging a projection 91 to detain the sruide-members in an up right web-grni ling position, and a second notch 92 tor cooperation with the projeo tion 91 to detain the {ruide-niembes in a re cumbent web-crimping position. The arangement is such that the spring 76 draws the rod 73 down to cause the projection to seat in either ot the notches yield ngly detain the guioe and detent members 30 in either upright or web crimping and detaining position. .Vhen the members t) are in the latter p lion, wli'ch s indicated by cloti and-dash lll' s in F ure 1. the web is bent rather sharply around the rod 73 and Another feature of the invention relates to the provision of ad ustable side guides or the worli-web at the delivery side of the platen and to the construction oi. said guides. Ateach displacement of the platen 16, the work-web "1 -4) is necv :arily out of control of the platen and iced-rolls. It is important. however, that the work-web -10 be iaii'itained always in the same position longitudinally of the platen lti, so that numbers typed in the printed columns ot the work forms will be entered in the proper dcnominations of the computing mechanism. For the purpose of thus controlling the lateral position ot the work-web el-tl in both the normal and displaced positions of the platen. provision is made of side guides 9-) the front paper-table 1-3 that "forms a ."1 of the displaceable platen-trame which guides comprise upstanding side 3-3: and connected lloor portions 95. floor portions of the guides 93 are nded upward around the upper edge 0t paper-table l at 96 to the rear of the table and have integral ears 9? which embrace a lint-sided rod 98 carrier by brackets on the back of the paper-table. Each of the side guides .93 also includes an integral spring tongue 100, which bears against: the that side 0; the rod 98. to hold the side guide of which it forms a part yieldingly in any position longitudinally of the rod. The spring tongue 100 serves also to urge the. floor portions 95 ot the guides down toward the lace of the trout paper- 'able 43. so that; downtnrned lower ends 101 of the tloor portions 95 will be caused to rest. closely against; the face of the paper-table to prevent 'lonL ing 0'? the work-web against or beneath the floor portions of the side guides.

v ariation-s may be resorted to within the scope of the invention. and portions ot' the improvements may be used without others.

Having thus described my invention, I claim:

1. In a combined typewriting and computingmachine having a traveling carriage a platen therein. computing mechanism comprising;- denominational members and a denomination-selector on the carriage to engage said denominational members seriatim, tabulatinomechanism. for causing the carlector with the denominational members,

comprising means on the carriage extension to snugly engage sald guide rail and a brace connected rigidly to the guiderail at the ends thereof and also between the ends to prevent bending of the guide rail in a horizontal direction.

2. vIn a continuous billing combined typewriting and computing machine, in combination, a traveling carriage, a revoluble platen therein, a rear carriage extension, a carbon-carrier reciprocable toward and from the platen on said carriage extension, a supporting and guiding rail for the rear end of the carriage extension, a supporting frame comprising rear brackets, and a long thin supporting and bracing bar on the brackets conected to the rail at its ends and between its ends to prevent horizontal bending of the rail and so prevent sidesway and vibration of the carriage extension.

3; In a continuous billing combined type,- writing and computing machine, in combination, a traveling carriage, a revoluble platen therein, a rear carriage extension, at carbon-carrier reciproca-ble toward and from the platen on said carriage extension, a supporting and guiding rail for the rear end of the carriage extension, a supporting frame comprising rear brackets, and a long thin L-shap'ed bar secured upon the brackets, said bar having a series of tongues extending into the rail and rigidly secured thereto and forming a rigid brace and support for the rail both between and beyond the supporting brackets.

L; In a continuous billing combined typewriting and computing machine, in combination, a traveling carriage, a ravoluble platen therein, a rear carriage extension, a carboncarrier reciprocable toward and from the platen on said carriage extension, a supporting and guiding rail for the rear end of the carriage extension, a supporting frame comprising rear brackets, and a long supporting and bracing bar mounted on the brackets and secured rigidly to the rail at several points to stiffen the rail and so prevent vibration of the rail and of the carriage extension.

5. In a long-carriage typewritingmachii'ie, the combination with a frame and a traveling carriage, of guiding supporting means for the carriage comprising a rear rail mounted on the frame and a rigid brace bar connected rigidly to the rail at a plurality of points between its supports to prevent bending of the rail in a horizontal direction.

6. In a long-carriage continuous billing typewriting and computing machine, the combination with a traveling carriage, of a platen therein, computing. mechanism com-' prising denominational members and a de' nomination-selector on the carriage to engage the denominational members seriatim, tabulating mechanism for causing the car ria'ge to jump to a computing column, a carbon-carrier rec-iprocable toward and from the platen, a rear carriage extension on which the carbon-carrier travels, guiding and supporting rails for the carriage, and means to prevent twisting of the carriage at tabulating which would cause improper en'- gagement of the denominationselector with the denominational members, comprising a horizontal brace bar connected to the rear rail at a series of points between its ends to prevent horizontal bending thereof.

In a long-carriage typewriting and computing machine, the combination with a frame and a long traveling carriage, of computing mechanism comprising a denomination-selectoron the carriage and a series of denominational members to be engaged s'eriatim thereby, guiding and supporting means for the long carriage comprising a rear guide rail mounted on the machine frame and projecting far beyond the sides of the frame to accommodate the long travel of the long carriage, means connecting the long guide rail to the frame, and additional means connected to the rail to stiffen it against horizontal bendinto prevent sidesway of" the carriage which would cause improper en gagement of the denomination-selector with the denominational members.

8. In a long-carriage continuous billing typewriting and computing machine, the combination with a traveling carriage, of a platen therein, computing mechanism comprising denominational members and a denomination-selector on the carriage "to engage the denominational members seriatirn, tabulating mechanism for causing the carriage to jump to a computing column, a carbon-carrier reciprocable toward and from the platen, a rear carriage extension on which the carbon-carrier travels, guiding and supporting rails for the carriage, means to prevent twisting of the carriage at tabulati-ng which would cause improper engagement of the denomination-selector with the denominational members, comprising a horizontal brace bar connected to the rear rail at a series of points between its ends to prevent horizontal bending thereof, a supporting and guiding rail for the rear end of the carriage extension, and a rigid bracing and supporting bar connected to the latter rail at a series of points to support and stiffen it.

9. In a continuous billing typewriting machine, the combination with a revoluble platen, of a carbon-carrier reciprocable toward and from the platen comprising a base and a carbon-holder removably mounted thereon. a carbon-carrier handle on the carbon;holder extending forward a substantial distance therefrom for use in moving the carbon-carrier to the front or rear, and a broad hand-hold on the handle adjacent the forward end thereof whereby the carboncarrier may be lifted from the machine, the hand-lmld being broad enough to prevent twisting of the carbon-carrier in the grip of the operator. i

10. In a continuous billing typewrit-ing machine, the combination with a revoluble platen, of a carbon-carrier reciprocable to ward and from the platen comprising a base and a 'carbon holder removably mounted thereon, and a carbon-carrier handle extending forward from one side of the carbonholoer to a position in easy reach of the operatoigrthe handle being enlarged and broadened near its forward end to provide a hand-hold of snflicientbreadth to prevent the unbalanced carbon-holder from twisting in the grasp of the operator when the carbon-holder is lifted from the machine by the handle. 7 a

11. In a continuous billing typewriting machine having a stationary framework, the coinbinationwith a revoluble platen and a carbon-carrier advanceable toward the platen to create a slack in the work-web to be drawn upon at line-feeding, of means upon the stationary framework and behind the carbon-carrier to frictionally engage the work-web and'prevent. its being drawn rearward by the weightof the web after the slack has been created. 7

12. In a continuous billing typewriting machine having a stationary framework, the combination with a traveling carriage, of a revoluble; platen therein, a rear carriage extension, a carbon-carrier;reciprocable toward and from; the platen, the carbon-carrier be ing advanceable toward the platen to create a slack in the work-web to be drawn upon at line-feeding, a stationary horizontallyeatending bar mounted on the rear of the carriage extension around which the workwebis led into the machine, and means upon the stationary framework for bending the work-web sharply enough around said bar to prevent the slack from being taken out'of the web by the weight of the web behind the bar.

13.111 a continuous billing typewriting machine, the combination with a traveling carriage, of a revoluble platen therein, a

rear carriage: extension. a carbon-carrier reciprocable toward and from the platen, the carbon-carrier being advanceable toward the platen to create a slack in the work-web to be drawn upon at line-feeding, a snnbbing bar at the rear of the carriage extcnsion around which the work-web is led into the machine, and means friction-ally cngaging the work-web at the front of thesnubbing bar; and pressing the work-web down to cause it to be bent sharply around the bar, the arrangement being such that the web may pass forwardly freely toward the platen, but is securely detained against acridental retraction. V

1 1-. In a continuous billing typcwril'ing machine, the combination with a bar, of side guides for the worloweb, means connecting the guides for movement together between upstanding web-guiding,positions and recumbent webcrimping and guiding positions, and means for yieldingly detaining the guides in either of said positions.

15.111 a continuous billing typewriting machine, the combination with a bar, of side guides for the work-web, a sleeve to which the side guides are keyed for adjustment toward and from each other, a rod on which the sleeve is rotatable to turn the guides in unison between upstanding and recumbent positions, and means yieldingly detaining the sleeve to hold the guides in either of said positions. I

16. In a continuous billing ,typewriting machine, the combination with a rcvoluble platen, of a device for maintaining slack in the workweb to be drawn upon by the platen, comprising a snubber, and a pair of members for engaging the work-web at opposite side margins thereof to the front of the snubber, said members bearing frictionally against the work-web and bending it around the snubber and being adjustaliile toward and from each other to accommodate diiferent widths of work-webs.

17. In a continuous billing typewriting machine, the combination with a rcvoluble platen, of a pair of web side guides behind the platen, each having an upstanding portion and an overhanging portion, and means for turning the guides in unison between an upright position and a horizontal position in which the overhanging portions; of the side guides bear down upon the web.

18.111 a continuous billing typcwriting machine, the combination with a revolnble platen, of a pair of web side guides behind the platen, each having an ll1)St.lll(:llllg 1)OI'- tion and an overhanging portion, a sleeve to which the guides are keyed, a rod on which the sleeve is rotatably mounted, supports having elongated openings in which the rod is mounted with provision for vertical shifting, a cam fast on the sleeve having a pair of detent notches in it. a projection against which the cam bears. anda spring connected to the rod and to the support thereof to draw the rod down and cause the projection to seat in the detent I lit) notches and yieldingly prevent further rotation of the sleeve-when thesleeve has been turned to bring either of the notches to the projection.

19. In a typewriting machine, the combination with a revolubie platen, of a front paper-table, a flat-sided rod at the baclr of the paper-table, adjustable guides for the work slidably mounted on the rod, and spring tongues on the guides bearing against the flat side of the rod to detain the guides in adjusted positions.

20. In a typewriting machi re, the combination with a platen and a pair of adjustable side guides for the work having floor portions, of a fiat-sided rod on which the side guides are slidably mounted, in-

tegral ears on the side guides embracing the rod and slidable therealong, and spring tongues integral with the guides bearing against the flat side of the rod to detain the guides in adjusted positions.

21. In a typewriting machine, the combination with a platen and a front papertable, of a side guide for the work on the front paper-table comprising an upstanding side gage, an integral floor portion, the latter extended and curled around the upper end of the paper-table to the rear thereof, ears on the extended portion, a spring tongue on the extended portion and integral therewith, and a flat-sided rod at the rear of the paper-table embraced by the ears, the side guide being slidable along the rod and the tongue engaging the flat side of the rod to detain the side guide in adjusted positions.

22. In a typewriting machine, the combination with a platen and a paper-table, of a side guide for the work on the paper-table comprising an upstanding side gage, a floor portion extending along the paper-table and around the upper extremity of the table to the rear thereof, ears on such extended por tion at the rear of the paper-table, a rod at the rear of the table embraced by the ears, and spring means pressing the guide in a direction to press the floor portion against the face of the paper-table to form a close joint therewith.

In a continuous billing typewriting machine, the combination with a traveling carriage and a revoluble platen therein, of a rear carriage extension, side guides for the work-web atthe rear of the carriage extension adjustable toward and from each other in accordance with the width of the work-web, a I front paper-table at the delivery side of the platen, side guides on the front paper-table adjustable toward and from each other in accordance with the width of the work-web, and means for yieldingly detaining all of said side guides in adjusted positions.

24. In a continuous billing typewriting machine, in combination, a traveling carriage, a displaceable platen-frame on the carriage, a revoluble platen j ournaled therein, a front paper-table forming part of the displaceable platen-frame, a rod carried by the platen-frame behind the table, and side gages on the rod adjustable toward and from each other, the side gages being effective to control the web either in the displaced or the normal position of the platen.

2:. In a continuous billing combined-typewriting and computing machine, the combination with computing mechanism for performing computations in different locations longitudinally of the platen, of a displaceable platen-frame whereby the platen can be raised to release the Work-Webfor gaging and carbon shifting, and adjustable side guides on the adjustable platen-frame at the delivery side of the platen for controlling the lateral position of the work-web when it is released by the platen to assure the correct positioning of the printed columns on the work-web with reference to the computing mechanism, so that numbers typed in said columns will be computed in the proper denominations of the computing mechanism at the writing of each form.

26. In a long-carriage continuous billing typewriting machine, the combination with a long traveling carriage, of a relatively narrow and light carriage extenison, and a carbon-carrier reciprocable toward and from the platen for holding carbons of a width corresponding to the length of the platen, comprising a narrow carbon-carrier base mounted to travel on rails of the narrow carriage extension, and a wide carbon-holder mounted on said base and projecting beyond the'base and the carriage extension at both sides thereof.

27. In a long-carriage continuous billing typewriting machine, the combination with a long traveling carriage, of a. relatively narrow and light carriage extension, and a carbon-carrier reciprocable toward and from the platen for holding carbons of a width corresponding to the length of the platen, comprising a narrow carbon-carrier base mounted to travel on rails of the narrow carriage extension, and a wide carbon-holder mounted on said base and projecting beyond the base and the carriage extension at both sides thereof, said carbon-holder comprising a flat bottom plate and reinforcing members to stiffen said bottom plate to strengthen th overhanging portions thereof.

28. In a long-carriage continuous billing typewriting machine, the combination with a long traveling carriage, of a relatively narrow and lightcarriage extension, a carboncarrier reciprocable toward and from the platen for holding carbons of a width corresponding to the length of the platen, comprising a narrow carbon-carrier base mounted to travel on rails of the narrow carriage 10 of a gage member slidingl mounted on the rod, said gage member comprising a web- ;gaging linger, a U-shaped bearing portion integral with said finger having a pair of ali ned bearing openings embracing the rod, a projection fitting into the groove of the rod, and a spring tongue bearing frictionally against the rod to detain the gage member in adjusted positions.

VlLLIAM F. HELMOND. 

